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Merge pull request #2444 from verilog-to-routing/3d_arch
Add 3D Architectures
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‎vtr_flow/arch/multi_die/README.md

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# 3D FPGA Architectures
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This directory contains architecture files for 3D FPGAs. The architectures are divided into three sub-directories:
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1. **koios_3d:**
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- Contains architecture files based on the [k6FracN10LB_mem20K_complexDSP_customSB_22nm](../COFFE_22nm/k6FracN10LB_mem20K_complexDSP_customSB_22nm.clustered.xml) architecture, utilized in Koios benchmarks.
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- Inside the architecture file, the fabric with multiple sizes based on the sector size is defined.
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- Routing resource and switch delays in this architecture are configured for 7 nm technology. The inter-die connection delay is 73 ps.
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- Detailed information on how these delays are obtained can be found in the paper "Into the Third Dimension: Architecture Exploration Tools for 3D Reconfigurable Acceleration Devices," presented at FPT '23.
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- **Architectures:**
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- `3d_full_OPIN_inter_die_k6FracN10LB_mem20k_complexDSP_customSB_7nm.xml`
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- The inter-die connection is only from output pins, with all output pins connected to the channel on the same die and the other.
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- Inside the architecture file, the fabric with multiple sizes based on the sector size is defined.
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- `3d_limited_OPIN_inter_die_k6FracN10LB_mem20k_complexDSP_customSB_7nm.xml`
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- The inter-die connection is only from output pins, with all OPINs of BRAMs and DSPs connected to the channels on the same die and the other die.
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- Only 60% of the OPINs of CLBs are connected to the channels on the other die and all of them can get connected to the channels on the same die.
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2. **stratixiv_3d:**
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- Contains architecture files based on a [StratixIV-like](../titan/stratixiv_arch.timing.xml) architecture.
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- Delays of switches and routing resources are similar to those reported in the capture of the StratixIV architecture.
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- For the inter-die connection, we multiply the L4 wire delay of SIV by the ratio of the inter-die connection delay to the L4 wire delay of the Koios_3d benchmark.
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- **Architectures:**
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- `3d_10x10_noc_base_stratixiv_up.xml`
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- A 10x10 NoC mech is put on the base die.
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- The upper die is SIV-like FPGA fabric.
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- `3d_full_inter_die_stratixiv_arch.timing.xml`
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- The architecture has two dice.
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- Both dice are SIV-like FPGA fabric.
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- All pins can cross die.
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- `3d_full_OPIN_inter_die_stratixiv_arch.timing.xml`
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- The architecture has two dice.
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- Both dice are SIV-like FPGA fabric.
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- Only OPINs can cross die.
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3. **simple_arch:**
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- Simple architectures primarily used for quick testing in the flow.
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- The inter-die delay of architectures in this file is considered to be zero.
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- Contains two dice and both have the simple fabric.
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- All pins can cross die.

‎vtr_flow/arch/multi_die/k6FracN10LB_mem20K_complexDSP_customSB_22nm.xml

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‎vtr_flow/arch/multi_die/k6FracN10LB_mem20K_complexDSP_customSB_22nm_OPINs.xml

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‎vtr_flow/arch/multi_die/aman_3d_coffe.xml renamed to ‎vtr_flow/arch/multi_die/koios_3d/3d_full_OPIN_inter_die_k6FracN10LB_mem20k_complexDSP_customSB_7nm.xml

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<!-- ODIN II specific config ends -->
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<layout>
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<!-- Physical descriptions begin -->
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<fixed_layout name="coffe_7nm" width="328" height="288">
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<auto_layout aspect_ratio="1.0">
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<layer die="0">
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<perimeter type="io" priority="101"/>
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<col type="dsp_top" startx="31" starty="1" repeatx="41" priority="20"/>
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</layer>
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</fixed_layout>
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</auto_layout>
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</layout>
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<fixed_layout name="sector_1_1" width="41" height="36">
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<layer die="0">
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<perimeter type="io" priority="101"/>
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<corners type="EMPTY" priority="102"/>
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<fill type="clb" priority="10"/>
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<col type="memory" startx="11" starty="1" repeatx="41" priority="20"/>
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<col type="memory" startx="25" starty="1" repeatx="41" priority="20"/>
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<col type="memory" startx="37" starty="1" repeatx="41" priority="20"/>
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<col type="dsp_top" startx="18" starty="1" repeatx="41" priority="20"/>
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<col type="dsp_top" startx="31" starty="1" repeatx="41" priority="20"/>
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<!-- PW -->
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<col type="tsv_hole" startx="8" starty="5" repeatx="13" incry="12" priority="103"/>
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<!-- GND -->
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<col type="tsv_hole" startx="14" starty="11" repeatx="13" incry="12" priority="103"/>
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</layer>
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<layer die="1">
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<perimeter type="io" priority="101"/>
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<corners type="EMPTY" priority="102"/>
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<fill type="clb" priority="10"/>
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<col type="memory" startx="11" starty="1" repeatx="41" priority="20"/>
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<col type="memory" startx="25" starty="1" repeatx="41" priority="20"/>
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<col type="memory" startx="37" starty="1" repeatx="41" priority="20"/>
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<col type="dsp_top" startx="18" starty="1" repeatx="41" priority="20"/>
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<col type="dsp_top" startx="31" starty="1" repeatx="41" priority="20"/>
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</layer>
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</fixed_layout>
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<fixed_layout name="sector_2_1" width="82" height="36">
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<layer die="0">
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<perimeter type="io" priority="101"/>
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<corners type="EMPTY" priority="102"/>
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<fill type="clb" priority="10"/>
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<col type="memory" startx="11" starty="1" repeatx="41" priority="20"/>
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<col type="memory" startx="25" starty="1" repeatx="41" priority="20"/>
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<col type="memory" startx="37" starty="1" repeatx="41" priority="20"/>
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<col type="dsp_top" startx="18" starty="1" repeatx="41" priority="20"/>
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<col type="dsp_top" startx="31" starty="1" repeatx="41" priority="20"/>
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<!-- PW -->
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<col type="tsv_hole" startx="8" starty="5" repeatx="13" incry="12" priority="103"/>
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<!-- GND -->
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<col type="tsv_hole" startx="14" starty="11" repeatx="13" incry="12" priority="103"/>
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</layer>
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<layer die="1">
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<perimeter type="io" priority="101"/>
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<corners type="EMPTY" priority="102"/>
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<fill type="clb" priority="10"/>
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<col type="memory" startx="11" starty="1" repeatx="41" priority="20"/>
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<col type="memory" startx="25" starty="1" repeatx="41" priority="20"/>
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<col type="memory" startx="37" starty="1" repeatx="41" priority="20"/>
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<col type="dsp_top" startx="18" starty="1" repeatx="41" priority="20"/>
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<col type="dsp_top" startx="31" starty="1" repeatx="41" priority="20"/>
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</layer>
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</fixed_layout>
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<fixed_layout name="sector_2_2" width="82" height="72">
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<layer die="0">
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<perimeter type="io" priority="101"/>
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<corners type="EMPTY" priority="102"/>
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<fill type="clb" priority="10"/>
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<col type="memory" startx="11" starty="1" repeatx="41" priority="20"/>
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<col type="memory" startx="25" starty="1" repeatx="41" priority="20"/>
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<col type="memory" startx="37" starty="1" repeatx="41" priority="20"/>
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<col type="dsp_top" startx="18" starty="1" repeatx="41" priority="20"/>
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<col type="dsp_top" startx="31" starty="1" repeatx="41" priority="20"/>
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<!-- PW -->
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<col type="tsv_hole" startx="8" starty="5" repeatx="13" incry="12" priority="103"/>
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<!-- GND -->
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<col type="tsv_hole" startx="14" starty="11" repeatx="13" incry="12" priority="103"/>
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</layer>
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<layer die="1">
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<perimeter type="io" priority="101"/>
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<corners type="EMPTY" priority="102"/>
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<fill type="clb" priority="10"/>
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<col type="memory" startx="11" starty="1" repeatx="41" priority="20"/>
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<col type="memory" startx="25" starty="1" repeatx="41" priority="20"/>
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<col type="memory" startx="37" starty="1" repeatx="41" priority="20"/>
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<col type="dsp_top" startx="18" starty="1" repeatx="41" priority="20"/>
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<col type="dsp_top" startx="31" starty="1" repeatx="41" priority="20"/>
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</layer>
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</fixed_layout>
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<fixed_layout name="sector_4_2" width="164" height="72">
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<layer die="0">
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<perimeter type="io" priority="101"/>
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<corners type="EMPTY" priority="102"/>
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<fill type="clb" priority="10"/>
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<col type="memory" startx="11" starty="1" repeatx="41" priority="20"/>
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<col type="memory" startx="25" starty="1" repeatx="41" priority="20"/>
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<col type="memory" startx="37" starty="1" repeatx="41" priority="20"/>
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<col type="dsp_top" startx="18" starty="1" repeatx="41" priority="20"/>
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<col type="dsp_top" startx="31" starty="1" repeatx="41" priority="20"/>
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<!-- PW -->
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<col type="tsv_hole" startx="8" starty="5" repeatx="13" incry="12" priority="103"/>
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<!-- GND -->
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<col type="tsv_hole" startx="14" starty="11" repeatx="13" incry="12" priority="103"/>
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</layer>
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<layer die="1">
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<perimeter type="io" priority="101"/>
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<corners type="EMPTY" priority="102"/>
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<fill type="clb" priority="10"/>
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<col type="memory" startx="11" starty="1" repeatx="41" priority="20"/>
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<col type="memory" startx="25" starty="1" repeatx="41" priority="20"/>
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<col type="memory" startx="37" starty="1" repeatx="41" priority="20"/>
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<col type="dsp_top" startx="18" starty="1" repeatx="41" priority="20"/>
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<col type="dsp_top" startx="31" starty="1" repeatx="41" priority="20"/>
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</layer>
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</fixed_layout>
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<fixed_layout name="sector_4_4" width="164" height="144">
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<layer die="0">
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<perimeter type="io" priority="101"/>
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<corners type="EMPTY" priority="102"/>
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<fill type="clb" priority="10"/>
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<col type="memory" startx="11" starty="1" repeatx="41" priority="20"/>
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<col type="memory" startx="25" starty="1" repeatx="41" priority="20"/>
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<col type="memory" startx="37" starty="1" repeatx="41" priority="20"/>
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<col type="dsp_top" startx="18" starty="1" repeatx="41" priority="20"/>
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<col type="dsp_top" startx="31" starty="1" repeatx="41" priority="20"/>
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<!-- PW -->
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<col type="tsv_hole" startx="8" starty="5" repeatx="13" incry="12" priority="103"/>
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<!-- GND -->
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<col type="tsv_hole" startx="14" starty="11" repeatx="13" incry="12" priority="103"/>
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</layer>
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<layer die="1">
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<perimeter type="io" priority="101"/>
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<corners type="EMPTY" priority="102"/>
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<fill type="clb" priority="10"/>
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<col type="memory" startx="11" starty="1" repeatx="41" priority="20"/>
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<col type="memory" startx="25" starty="1" repeatx="41" priority="20"/>
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<col type="memory" startx="37" starty="1" repeatx="41" priority="20"/>
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<col type="dsp_top" startx="18" starty="1" repeatx="41" priority="20"/>
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<col type="dsp_top" startx="31" starty="1" repeatx="41" priority="20"/>
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</layer>
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</fixed_layout>
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<fixed_layout name="coffe_7nm" width="205" height="180">
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<layer die="0">
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<perimeter type="io" priority="101"/>
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<corners type="EMPTY" priority="102"/>
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<fill type="clb" priority="10"/>
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<col type="memory" startx="11" starty="1" repeatx="41" priority="20"/>
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<col type="memory" startx="25" starty="1" repeatx="41" priority="20"/>
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<col type="memory" startx="37" starty="1" repeatx="41" priority="20"/>
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<col type="dsp_top" startx="18" starty="1" repeatx="41" priority="20"/>
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<col type="dsp_top" startx="31" starty="1" repeatx="41" priority="20"/>
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<!-- PW -->
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<col type="tsv_hole" startx="8" starty="5" repeatx="13" incry="12" priority="103"/>
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<!-- GND -->
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<col type="tsv_hole" startx="14" starty="11" repeatx="13" incry="12" priority="103"/>
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</layer>
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<layer die="1">
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<perimeter type="io" priority="101"/>
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<corners type="EMPTY" priority="102"/>
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<fill type="clb" priority="10"/>
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<col type="memory" startx="11" starty="1" repeatx="41" priority="20"/>
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<col type="memory" startx="25" starty="1" repeatx="41" priority="20"/>
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<col type="memory" startx="37" starty="1" repeatx="41" priority="20"/>
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<col type="dsp_top" startx="18" starty="1" repeatx="41" priority="20"/>
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<col type="dsp_top" startx="31" starty="1" repeatx="41" priority="20"/>
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</layer>
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</fixed_layout>
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<device>
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<sizing R_minW_nmos="13090" R_minW_pmos="19086.83"/>
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<area grid_logic_tile_area="0"/>
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<y distr="uniform" peak="1.000000"/>
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</chan_width_distr>
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<switch_block type="custom"/>
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<connection_block input_switch_name="ipin_cblock" input_inter_die_switch_name="die_connection"/>
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<connection_block input_switch_name="ipin_cblock" input_inter_die_switch_name="ipin_inter_layer_cblock"/>
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</device>
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<switchlist>
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<switch type="mux" name="L4_driver" R="0.0" Cin="0.0" Cout="0.0" Tdel="9.877e-11" mux_trans_size="2.6482996805637553" buf_size="18.744014602932605"/>
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<switch type="mux" name="L16_driver" R="0.0" Cin="0.0" Cout="0.0" Tdel="2.016e-10" mux_trans_size="3.1851297470059468" buf_size="39.327334265524485"/>
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<switch type="mux" name="L16_inter_layer_driver" R="0.0" Cin="0.0" Cout="0.0" Tdel="2.746e-10" mux_trans_size="3.1851297470059468" buf_size="39.327334265524485"/>
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<switch type="mux" name="ipin_cblock" R="0.0" Cout="0.0" Cin="0.0" Tdel="5.636e-11" mux_trans_size="2.008" buf_size="9.624436045683868"/>
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<switch type="mux" name="die_connection" R="0.0" Cout="0.0" Cin="0.0" Tdel="130e-12" mux_trans_size="1.508" buf_size="11.71"/>
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<switch type="mux" name="ipin_inter_layer_cblock" R="0.0" Cout="0.0" Cin="0.0" Tdel="130e-12" mux_trans_size="1.508" buf_size="11.71"/>
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</switchlist>
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<segmentlist>
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<segment name="L4" freq="280" length="4" type="unidir" Rmetal="0.0" Cmetal="0.0">

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